This problem MIGHT have started when I applied the "f1" update - I'm not sure.
I place a TAB control on a blank VI.
I click inside it with the TEXT tool.
The text box opens not where I click, but some distance above it.
Today the distance is about an inch, some days it's different.
It will even grow the tab control if I click within an inch of the top.
The cursor otherwise works fine - If there's an object in the TAB control, i can click on it and operate normally.
I can click OUTSIDE the tab control and it's OK.
Hmmm - the error distance is related to where on the screen the TAB control is.
If the TAB control is at the y=0 mark on the panel, the error distance is about 150 pixels.
If the TAB control is at the y=150 point, the error is 20 pixels
If the TAB control is WAY down on the page, the error is actually in the other direction, and the text box opens BELOW where I click.
It's like playing Whack-a-mole.
Here's a pic: I clicked where the cursor is shown, and you can see the text box.
OK, the error does NOT depend on where the TAB control is on the page, it depends on where the page is scrolled to.
IOW, if I scroll the whole page up or down, the error distance changes.